Power back-off strategies for very high bit rate digital subscriber line transmission systems

Author

Friese, Mathias ; Havezov, Peter

Author_Institution

T-Nova Deutsche Telekom Innovationsgesellschaft mbH, Darmstadt, Germany

Volume

2

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

1150

Abstract

Very high-bit rate digital subscriber line (VDSL) transmission systems are performance limited to a significant degree by far-end crosstalk (FEXT). In a deployment scenario, where the customer equipment (network termination, NT) is physically placed at different locations along a cable, the transmit power of each modem has to be chosen carefully (backed-off) to obtain satisfactory performance for each modem in the cable. A new approach, based on a numerical optimization procedure is presented and possible strategies for setting the individual power back-off (PBO) levels are discussed

Keywords

crosstalk; digital subscriber lines; modems; optimisation; FEXT; VDSL transmission systems; customer equipment; far-end crosstalk; modem; network termination; numerical optimization; performance; power back-off strategies; transmit power; very high bit rate digital subscriber line; Attenuation; Background noise; Bit rate; Crosstalk; DSL; Frequency estimation; Modems; Power cables; Propagation losses; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1999. GLOBECOM '99

Conference_Location

Rio de Janeireo

Print_ISBN

0-7803-5796-5

Type

conf

DOI

10.1109/GLOCOM.1999.829953

Filename

829953